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MACHINE PoR rPORMING AND STAMPING Loops;`

296,050. Patented Apr.' 1, 1884.

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CHARLES FELISSIER, `OF CONCORD, NEFV'HAMPSHIRE, ASSIGNOR OF ONE- HALF TOGEORGE H. EMERY, OF SAME PLAGE.

MACHINE FOR FORMING AND STAMPING LOOPS.

SPECIFICATION `forming part of LttersrPatent No. 296,050, dated April 1,1884,

Application tiled February 8, 18H4. (No modali.)

To all whom t may concern:

Be it known that l, CHARLES PELIssinR, a citizen of the United States,residing at Con# cord, in the county of Merrimac and State of i NewHampshire, have invented a certain new,

` press, which may be so constructed as to be operated either by hand orpower, having a screw 4placed vertically with the bedexerting a pressuredownward upon the strap to which a loop issewed, and two screws placedat either end operating horizontally toward the center of said bed,which, when set in motion by suitable gearing, force both side and enddies upon the loop simultaneously, the said bed, upon `which the dies orstamps and the loop are placed, being heated by gas or otherwise whilethe machine is in use.

Reference `may be had to the accompanying drawings, forming part of thisspecification, in which similar letters of reference indicate corresponding parts in all the figures, of which- Figure l representsafront elevation of my machine having stamping-die plates removed,

j for use.

' 6 is a detail view of an `end block, by the use of which the ends of aloop are given a square huish. Fig. 7 represents a loop as when inposition to be stamped, resting within or upon the parts shown in Figs.`4, `5, and 6. 'Fig 8 represents a plan `view of the hand-lever as whenin position upon the vertical screw.

The press may be formed either of iron or wood, or both. The drawingsrepresent on asconst'ructed of cast-iron.

The bed A of the press is formed substantially as shown in Fig. 3,having at equal distances from either end thereof the cavity a,

vfor the reception of the blocks B, into which suitable nuts, C, towhich the horizontal screwshafts D are threaded, are rigidly fastened.

Upon the blocks B are placed the columns E, supporting the cap-piece F,all of these parts being held in place upon the bed A by suitable boltsand nuts, lettered, respectively, G g.

The vertical screwshaft H may be threaded to the cap-piece F, or to anut, I, which vmay enter the bottom of said piece F, and part waythrough the same, the latter construction being shown by dotted lines inFig. 1.` If said screw-shaft beoperated by hand, a suitable double-endedlever, J, is fitted to its upper end, having a certain amount of slack;or, in other words, said lever will be so fitted to said screw-shaft asto render it capable of a certain amount of rotary motion previous tothe statical moment, thus enabling an operator to aecumulate for thelever J considerable force before it is applied to the screw-shaft H.

Swiveled to the screw-shaft H vis a follower, K, which is guided in itsmovement to and away from a loop by the tongues e, projecting from thecolumns E, and thus prevented from any lateral play; and in order thatsaid follower may be at all times parallel with the bed A, suitableguide-rods, L, may be secured to the follower K and pass upward and intothe cap-piece F.

The screw-shafts D are provided one with a right and the other with aleft thread, by reason of which said screw-shafts may be operated to andfrom each other simultaneously. To that portion of the said serew-shaftswhich is left without a thread are splined the spur-gears M M, which areprevented from any end moltion by being placed between the outerbearings, N N, supporting said screw-shafts-D,and

the stands O O, which are bolted to the top of tion within the gears M Mand the bearings N N while being rotated by the said gears M M and thepinions P l, which mesh with V each' other. The pinions B l? are carriedupon a suitable shaft, Q, hung in bearings R R, upon one end of whichbelt-pulleys may be applied;

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or, if desired to operate said machine by hand, a crank may be placedthereon and answer every purpose.

A flame of gas or kerosene may be introduced into the chamber A of thebed A, and a transverse slot, c', is out in the top of said bed, thecenter of said slot being connected with the chamber A/ by asmall hole,a2, which serves as an air-vent, and thus conducts the heat from saidchamber along the bottom surface ofthe bed-die T for its entire length,or a slot may be cut in the bottom of the bed-die T and the slot adispensed with, as shown in Fig. 4. The top surface of said beddie istenoned at either end, and the length of the top surface, minus the saidtenons, is equal to the length of the side die-plates, U.

The end blocks, V, are provided with a transverse slot, c, upon theirtop sides, and another slot, c', cut in their bottom, directlyunderneath saidslotc. Thesideoftheendblocks,V,which comes in contactwith the side die-plates, U, should be planed perfectly flat, theopposite sides being chamfered off toward either end, fora purpose to behereinafter described. The screw-shafts D act against suitable blocks,IV, which present a flat surface to the side dieplates, U, (see Fig. 2,)and to either' side of which are attached strong lever-springs X, whichspend their force upon the end blocks, V, and by reason ofthe chamferedsides of said end blocks the pressure of the springs X is increased withthe increase of pressure obtained by the screws D. If found desirable,the screws D, blocks W, and the side die-plates, U, may be so connectedtogether as that the said screws D will draw or spread the die-plates Uapart, as well as force them together; and, for the purpose of savingtime while operating the machine, it is probably preferable so to do.The width of the tenons on the ends of the bed die T should be such asto iit rather snug in the slot c of the end blocks, V, and theirthickness may be equally snug f't, or they may be left a little loose,and thespiral springst be so placed in holes formed in their tops, as inFig. 4, as to slightly elevate the end blocks, V, and thus enable anoperator to judge by feeling as well as by sight whether the loop is inits proper place and ready to receive the pressure. This will be betterunderstood when I say that the parts to be operated vupon are placedloopside down, and the slots vt in the tops of the end blocks, V, aremade narrower than the width of the loop to be nished by at least thethickness of the stock of which it is composed. The thickness of thebed-die T is also less by at leastthe thickness of the stock of a loopthan is the bottom ofthe slot c from the bed A of the press, by whichconstruction the ends of a loop may be squared and given equally as gooda linish as are the sides and top. The surfaces of the dies vT U whichcome in contact with a loop may be engraved in any ornamentaldesignwished. Suitable pressureblocks will beformed of steel `or iron, andattached in some convenient manner to the follower K, different widths,lengths, and forms being required for various loops. By the use of ahorizontal screw' at either side of a loop to be nished, said loop mayremain at all times in the center of the bed A, and thus be directlyover the heat which passes from the chamber Al into the hole a, andthence, by means of the slot a, under the bed-die T, from which itescapes, and it is .obvious that the screws D may be operated by meansof a crank or hand wheel upon their outer ends; but I consider thegearing shown in the drawings to be preferable.

The construction of the dies T andU and the end blocks, V, may varysomewhat from that shown in the drawings-for instance, the tenons on thedie T and the slots c in the end blocks, V, maybe dispensed with and yetaccomplish very good results. The side dieplates, U, may also have aflange along their sides at the bottom, as shown by dotted lines in Fig.5, and the bed-die T, by being made thinner, may rest upon said flangeinstead of resting upon the bed A. When a loop is ready to be formed andstamped, the sidedieplates, U, should be spread apart or a little awayfrom the bed-die T. This releases the pressure of the springs X upon theend blocks, V, and a loop may then be placed in position, as shown inFig. 7. The die-plates U and end blocks, V, should then be brought, bymeans of the screws D, just in contact with the loop,

and the pressure first applied by the screw H, after which the requiredpressure to complete and finish said loop may be applied by the screwsD.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is-

1. In a press constructed substantially as described, having a verticalscrew-shaft, lH,

follower K, and bed A, the chamber A, .airvent a2, and transverse slota, as and for the purpose specified.

' 2. In a press constructed substantially as described, having avertical screw-shaft, H, the horizontal screw-shafts D, rotatedsimultaneously by means of the gears M M, pinions P Rand shaft Q,operating in the manner `and for the purpose set forth.

8. Ina press having a verticalscrew, H, follower K, and horizontal screwD, the combinationfof the die-plates T U, and blocks W, with the screwsD, all constructed and operating substantially as-described, and for thepurpose set forth.

4. In a press having a vertical screw, II, follower K, .and horizontalscrew D, the combinationof the dies T U, end blocks, V,:an.d blocksW,.having springs X, Vall constructed and operating substantiallyinthemanner-,and for the purpose set forth.

' CHARLES .PELISSIER Witnesses:

NATHANIEL E. MARTIN, J. B. THURsroN.

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